{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "814438882",
    "entityType": "User",
    "nonce": "0x206b8c47424da5cc1e46331706874d4d66d3952dd8c718fdb6a0321ffefa6601",
    "signature": "0x812e02ee150bc453943311eaa3be58a239c6334128aaf41bab5a3323e39768227b02ca5d0adec055a220761838bd8f2bcf43ff199501891762761ce3750274371b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}